Our Leadership Team

Heather Milliken

Managing Director

Heather joined Onelab in 2017 after 20+years in the scientific distribution industry in New Zealand. Heather was most recently Managing Director at Global Science, under VWR ownership, and prior to that held management roles across sales, marketing and technical service. Heather understands that New Zealand companies must meet the highest standards, in a very competitive and remote environment; therefore, supply of high quality, well supported products is imperative to success. “Results matter” was born from these values.  Contact Heather on heather@onelab.co.nz

Aaron Hancock

Business Manager

Aaron joins Onelab after 15+ years in sales and marketing and after a successful career in the New Zealand food manufacturing industry. Aaron has been responsible for food quality within a production environment and has held laboratory and production leadership roles within some of NZ’s leading food companies – such as Fonterra, Bluebird (Pepsico) and Zeagold. Aaron has a broad understanding of applications and works with customers to provide product that best match their needs.  Contact Aaron on aaron@onelab.co.nz

Vani Bury

Sales Director

Vani joins Onelab after a successful tenure as Sales Manager at VWR. Vani has won numerous awards for outstanding customer service and performance, and her customer testimonials are outstanding. Vani’s laboratory and manufacturing experience includes time at Cordbank and Invitrogen. She brings with her a passion for science which is exemplified by her position in the invitation-only international, Golden Key honour society for her excellence in science. Contact Vani on vani@onelab.co.nz

John Clark

Business Development Manager

John's name is synonymous with scientific distribution in New Zealand, having more than 40 years expertise, including being a founding owner of Global Science in New Zealand.  John has expertise in multiple laboratory disciplines, but is most excited and motivated by providing consumables to NZ laboratories.  John has a passion for our industry and a knowledge base about products that is second to none!  Contact John on john@onelab.co.nz


Christine Mahoney

Sales Operations Manager

Christine has years of experience working within laboratories in New Zealand and Australia, and working for scientific distribution companies in roles varying from customer service, sales management and operations, during which time she won multiple awards including international recognition.  Christine brings a wealth of knowledge to Onelab particularly around process improvement and ensuring customer satisfaction.  Contact Christine on christine@onelab.co.nz 


Michelle Dunn

Customer Service Manager

Michelle is an experienced customer service manager with over 10 years experience managing and building customer focused teams.  Michelle's passion is ensuring customer retention and that all customers get what they need, and know that their business is valued.  Michelle has GLP laboratory experience and understands the New Zealand scientific market from her years at Global Science where she was customer service manager.  Contact Michelle on michelle@onelab.co.nz



Dieter Hoffmann-Vocke

Senior Service Engineer

Dieter joins Onelab as Senior Service Engineer after a successful career spanning decades and continents.  Dieter has a degree in Chemical Engineering gained in Berlin, followed by decades of experience in chemistry related applications.  Dieters passion is for helping NZ customers with service and related technical queries, and specialises in METTLER TOLEDO and Buchi products.  Dieter can be contacted on dieter@onelab.co.nz 

Michael Blennerhassett

Non-Executive Director

Michael is an independent corporate advisor with expertise in M&A, divestments and capital raising for some of New Zealand’s largest companies. Michael has 25+ years’ experience with roles at First NZ Capital and Credit Suisse. Michael was also recently an advisory board member for Ice Angels, one of NZ’s leading angel investment groups, and joins Onelab as a non-executive director to further his passion for science and the New Zealand research and high-value manufacturing space.